The modification consists of new natural gas and oil-fired boilers, emergency engines, and process emission sources used in the manufacture of explosives, according to a public notice.

BAE is the operating contractor for HAAP, which has been undergoing a huge modernization to make next generation explosives.

TDEC’s Division of Air Pollution Control held a public hearing concerning the application in Kingsport on Thursday.

Electronic copies of the draft permit and supporting materials are available by accessing the TDEC site located at: https://www.tn.gov/environment/ppo-public-participation/ppo-public-participation/ppo-air.html.

Written comments may also be submitted electronically to air.pollution.control@tn.gov. A final determination will be made after consideration of all relevant comments and other available information. Questions may be addressed to Travis Blake at (615) 532-0554 or (615) 532-0617.